DE29617824U1 - Cooling circuit safety device - Google Patents

Cooling circuit safety device

Info

Publication number
DE29617824U1
DE29617824U1 DE29617824U DE29617824U DE29617824U1 DE 29617824 U1 DE29617824 U1 DE 29617824U1 DE 29617824 U DE29617824 U DE 29617824U DE 29617824 U DE29617824 U DE 29617824U DE 29617824 U1 DE29617824 U1 DE 29617824U1
Authority
DE
Germany
Prior art keywords
valve
cooling circuit
safety device
circuit safety
kpa
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE29617824U
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German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE29617824U priority Critical patent/DE29617824U1/en
Publication of DE29617824U1 publication Critical patent/DE29617824U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0204—Filling
    • F01P11/0209—Closure caps
    • F01P11/0238—Closure caps with overpressure valves or vent valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/22—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point
    • F01P3/2207—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point characterised by the coolant reaching temperatures higher than the normal atmospheric boiling point

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Details Of Measuring And Other Instruments (AREA)

Description

Beschreibung:Description:

Die meisten Verbrennungsmotoren führen die Wärme über einen geschlossenen Kühlkreislauf ab.Most combustion engines dissipate heat via a closed cooling circuit.

Stand der Technik:State of the art:

Meistens sitzt das Überdruckventil auf dem Wasserausgleichsbehälter.The pressure relief valve is usually located on the water expansion tank.

Beim Erwärmen dehnt sich die Flüssigkeit aus und es entsteht ein Überdruck im Kühlsystem.When heated, the liquid expands and excess pressure is created in the cooling system.

Nach Erreichen eines voreingestellten Druckes, meistens 140 kPa öffnet das Überdruckventil, After reaching a preset pressure, usually 140 kPa, the pressure relief valve opens,

Fig. 6 zeigt ein derartiges Überdruckventil.Fig. 6 shows such a pressure relief valve.

Durch den Strömungswiderstand entsteht vor dem Kühler ein Druck bis max. 60 kP D.h. im Kühlsystem werden Drücke bis 200 kPa erreicht.The flow resistance creates a pressure of up to 60 kP in front of the cooler. This means that pressures of up to 200 kPa are reached in the cooling system.

Das isi auch bei den meisten Automobilhersteffem die obere Grenze, weil man keine fahrenden Bomben auf äen Straßen haben will.This is also the upper limit for most car manufacturers because they don't want to have moving bombs on the roads.

Problematisch ist jedoch die Nachheizphase auch „hot. stop" genannt beim Abstellen des Motors im heißen Zustand.However, the post-heating phase, also known as "hot stop", is problematic when the engine is switched off when it is hot.

Solange nur Gas ansteht ,kann dieses durch das Überdruckventil entweichen.As long as there is only gas present, it can escape through the pressure relief valve.

Verdampft jedoch Kühlflüssigkeit im Motor, drückt die Gasblase die Flüssigkeit im Ausgleichsbehälter gegen das Ventil und bei einem Überdruck über 140 kPa tritt Kühlflüssigkeit aus.However, if coolant evaporates in the engine, the gas bubble presses the liquid in the expansion tank against the valve and, if the pressure exceeds 140 kPa, coolant escapes.

Das System ist nicht wartungsfrei.The system is not maintenance-free.

Gelöst wird dieser Mangel jetzt unterschiedlich.This deficiency is now being solved in different ways.

Durch Differeniiafventiie,Ffüssigkeitsumwäizpumpen, Nachlaufen des Lüfters und Überlaufbehälter in der Nachheizphase.Through differential valves, liquid circulation pumps, fan run-on and overflow tank in the post-heating phase.

Alle vorstehenden Lösungen sind kosten-u. energieaufwendig.All of the above solutions are costly and energy intensive.

Problem:Problem:

Der im Schutzanspruch 1-4 angegebenen Erfindung liegt das Problem zu Grunde eine Kühlkreislauf-Sicherheitsvorrichtung zu schaffen, die das Kühlsystem in jedem Betriebszustand absichert, jedoch ohne Kühlffüssigkeitsveriusfe.The invention specified in claims 1-4 is based on the problem of creating a cooling circuit safety device that protects the cooling system in every operating state, but without any loss of coolant.

Lösung:Solution:

Dieses Problem wird mit dem Schutzanspruch 1-4 geföst.This problem is solved with protection claims 1-4.

I *■■* · ·· rm w~I *■■* · ·· rm w ~
I · · · · · ···I · · · · · ···
I · · · · · ··* ·I · · · · · ···* ·
I · · · · ·I · · · · · •
Vorteile: •
Advantages: -2--2- Kein Kühlfiüssigkeits-Verfusi.No coolant fusion. Wartungsfrei.Maintenance free. Kostengünstig.Cost-effective. Kein Energieaufwand.No energy expenditure.

Ausführungsbeispief:Example of implementation:

Unter das Ventif wie in Fig. 6 gezeigt (Stand der Technik) ist ein zweites Ventil aufUnder the valve as shown in Fig. 6 (state of the art) a second valve is mounted on

der Druckseite ongeordnet.arranged on the print page.

Dieses Ventil hat einen Schwimmkörper oder ist als Schwimmkörper ausgeführt und wird bei ansteigendem Flüssigkeitsspiegel angehoben und in Reihe geschaltet.This valve has a float or is designed as a float and is raised and connected in series when the liquid level rises.

Die Fig. 1-5 zeigen diese Lösung.Fig. 1-5 show this solution.

Fig. 1.1m ruhenden Betrieb (Garage/parken) bleibt das Veniif geschlossen.Fig. 1.1m During idle operation (garage/parking) the valve remains closed.

Fig. 2.Bei Fahrbetrieb - öffnet das Ventif - über 140 kPa.Fig. 2.When driving - the valve opens - over 140 kPa.

Fig. 3.In der Nachheizphase steigt der Flüssigskeitsspiegel (durch Verdampfung im Motor) an und hebt das Ventil 11 unter den Ventilkörper 3.Fig. 3.In the post-heating phase, the liquid level rises (due to evaporation in the engine) and lifts the valve 11 below the valve body 3.

Fig. 4.Zeigt - das Ventil 11 hat geöffnet(über 60 kPa.)und der Druck steht am Ventii 4 an.Fig. 4. Shows - the valve 11 has opened (over 60 kPa.) and the pressure is present at the valve 4.

Fig. 5.Der Flüssigkeitsspiegel und Druck ist weiter angestiegen und das Ventil 4 hat ebenfalls (bei 200 kPa geöffnet.Fig. 5.The liquid level and pressure continued to rise and valve 4 also opened (at 200 kPa).

im Fahr - und Nachheizbetrieb kann der max. zulässige Druck von 200 kPa des Kühisystems genutzt werden.When driving and reheating, the cooling system’s maximum permissible pressure of 200 kPa can be used.

Bezugszeichenliste:List of reference symbols:

1 = Schraubkappe1 = screw cap

2 = Außenclichtung2 = Outside clearing

3 = Ventilkörper3 = Valve body

4 = Überdruckventil4 = Pressure relief valve

5 = Unterdruckventil5 = Vacuum valve

6 = Unterdruckfeder6 = Vacuum spring

7 = Überdruckfeder7 = Overpressure spring

8 = Ventildichtung8 = Valve seal

9 = Gewindestutzen-Ausgleichsbehälter 10= Schwimmkörper9 = Threaded connection expansion tank 10 = Floating body

11 = "hot stop" -Ventil11 = "hot stop" valve

12 = Überdruckventil12 = Pressure relief valve

13 = Ventildichtung13 = Valve seal

14= hot stop - Ventilkörper14= hot stop - valve body

Claims (4)

1 : Schutzansprüche:1 : Protection claims: 1. Kühikreisfauf-Sicherheitsvorrichtung.dadurch gekennzeichnet,daß unter dem herkömmiicherweise verwendeten Ventif(Fig. 6) das bei 140 kPa öffnet.ein zweites Ventif auf der Druckseite zugeordnet ist.1. Cooling circuit safety device, characterized in that, under the conventionally used valve (Fig. 6) which opens at 140 kPa, a second valve is associated on the pressure side. 2. Kühlkreislauf-Sicherheitsvorrichtung nach Anspruch 1 ,dadurch gekennzeichnet, daß das zusäfzfiche Ventil über einen Schwimmkörper verfügt oder als Schwimmkörper ausgeführt ist.2. Cooling circuit safety device according to claim 1, characterized in that the additional valve has a floating body or is designed as a floating body. 3. Kühfkreisiauf-Sicherheifsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,daß das zusätzliche Ventil in der Nachheizphase bei aufgestiegenem Kühimitteispiegel geschlossen ist, und daß es bei einem Druck über 60 kPa aktiviert wird.3. Cooling circuit safety device according to one of the preceding claims, characterized in that the additional valve is closed in the post-heating phase when the coolant level has risen and that it is activated at a pressure over 60 kPa. 4. Kühikreisrauf-Sicherheitsvorrichtung nach Anspruch 1,dadurch gekennzeichnet, daß das erste Überdruckventil bei 200 kPa öffnet.4. Cooling circuit safety device according to claim 1, characterized in that the first pressure relief valve opens at 200 kPa.
DE29617824U 1996-10-14 1996-10-14 Cooling circuit safety device Expired - Lifetime DE29617824U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29617824U DE29617824U1 (en) 1996-10-14 1996-10-14 Cooling circuit safety device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29617824U DE29617824U1 (en) 1996-10-14 1996-10-14 Cooling circuit safety device

Publications (1)

Publication Number Publication Date
DE29617824U1 true DE29617824U1 (en) 1997-02-13

Family

ID=8030539

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29617824U Expired - Lifetime DE29617824U1 (en) 1996-10-14 1996-10-14 Cooling circuit safety device

Country Status (1)

Country Link
DE (1) DE29617824U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3438422B1 (en) * 2017-08-02 2023-12-13 Commissariat à l'Energie Atomique et aux Energies Alternatives Device and method for regulating the fluid load circulating in a system based on a rankine cycle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0177860A2 (en) * 1984-10-06 1986-04-16 Behr GmbH & Co. Device for securing a cooling circuit of an internal-combustion engine
DE3815023A1 (en) * 1987-05-29 1988-12-08 Toyoda Gosei Kk CLOSURE WITH A PRESSURE VALVE
DE4124182C1 (en) * 1991-07-20 1992-06-04 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
DE4220631C1 (en) * 1992-06-24 1993-03-11 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Valve arrangement for cooling circuit of IC engine - has at least two excess pressure valves and switch valve for change of pressure between excess pressure valves

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0177860A2 (en) * 1984-10-06 1986-04-16 Behr GmbH & Co. Device for securing a cooling circuit of an internal-combustion engine
DE3815023A1 (en) * 1987-05-29 1988-12-08 Toyoda Gosei Kk CLOSURE WITH A PRESSURE VALVE
DE4124182C1 (en) * 1991-07-20 1992-06-04 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
DE4220631C1 (en) * 1992-06-24 1993-03-11 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Valve arrangement for cooling circuit of IC engine - has at least two excess pressure valves and switch valve for change of pressure between excess pressure valves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3438422B1 (en) * 2017-08-02 2023-12-13 Commissariat à l'Energie Atomique et aux Energies Alternatives Device and method for regulating the fluid load circulating in a system based on a rankine cycle

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Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 19970327

R163 Identified publications notified

Effective date: 19970416

R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: B60K0011020000

Ipc: F01P0011020000

Effective date: 19980702

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20000525

R157 Lapse of ip right after 6 years

Effective date: 20030501